Patents by Inventor Dwight P. Morejohn

Dwight P. Morejohn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7909846
    Abstract: An access platform having a first and a second blade interconnected to a spreader member that laterally drives the blades apart or together and a sternal pad interconnected to a blade. The superior blade is preferably pivotally coupled to the spreader member such that it naturally rises as the blades are separated. Alternatively, a vertical displacement member is operably interconnected to a blade and the spreader member and is used to vertically displace the interconnected superior blade and, thus, increase a surgeon's working space and visual access for the dissection of an internal mammary artery. A tissue retractor is interconnected to the blades to draw the soft tissue around an incision away from the surgeon's working area.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: March 22, 2011
    Assignee: MAQUET Cardiovascular LLC
    Inventors: Charles S. Taylor, William N. Aldrich, Federico J. Benetti, Richard S. Ginn, Dwight P. Morejohn, Brent Regan, Eugene E. Reis, Ivan Sepetka, William F. Witt
  • Publication number: 20110066000
    Abstract: Exemplary scope systems and methods involve a cannula assembly, a sheath assembly, and a tubing set. A cannula assembly, which may be a non-magnetic scope cap assembly, can include a cannula body, a proximal housing having a strap, an optical window, and a luer for suction or flushing. A cannula body may include a first lumen or scope channel for receiving a visualization device such as an endoscope or laparoscope, a distal end having suction or flushing flush apertures, and a second lumen for providing fluid communication between the apertures and the luer. Exemplary magnetic introducer systems and methods involve a cannula assembly, a sheath assembly, a tubing set. In some cases, the cannula assembly of a magnetic introducer system can be a magnetic scope cap assembly. In addition to cannula and sheath assemblies, magnetic introducer systems can include a magnetic introducer tubing assembly and a stylet assembly.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 17, 2011
    Applicant: ESTECH, Inc. (Endoscopic Technologies, Inc.)
    Inventors: Tamer Ibrahim, Michael J. Banchieri, Tony Wong, Dwight P. Morejohn
  • Publication number: 20100317925
    Abstract: Suction assisted tissue stabilizers that include portions that deflect when force is applied thereto and return to their initial shape when the force is removed.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Inventors: Michael J. Banchieri, Dwight P. Morejohn, Tamer Ibrahim
  • Patent number: 7824442
    Abstract: The invention includes methods of and apparatus for endovascularly replacing a heart valve of a patient. One aspect of the invention provides a method including the steps of endovascularly delivering a replacement valve and an expandable anchor in an unexpanded configuration within a sheath to a vicinity of the heart valve; deploying the anchor from the sheath; expanding the anchor with a deployment tool comprising a plurality of actuation elements to contact tissue at an anchor site; and retrieving the anchor into the sheath.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: November 2, 2010
    Assignee: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Hans F. Valencia, Brian D. Brandt, Claudio Argento, Ulrich R. Haug, Jean-Pierre Dueri, Daniel Hildebrand, Dwight P. Morejohn, Tom Saul
  • Patent number: 7780725
    Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an expandable anchor configured for endovascular delivery to a vicinity of the patient's heart valve. In some embodiments, the replacement valve is adapted to wrap about the anchor, for example, by everting during endovascular deployment. In some embodiments, the replacement valve is not connected to expandable portions of the anchor. In some embodiments, the anchor is configured for active foreshortening during endovascular deployment. In some embodiments, the anchor includes expandable lip and skirt regions for engaging the patient's heart valve during deployment. In some embodiments, the anchor comprises a braid fabricated from a single strand of wire. In some embodiments, the apparatus includes a lock configured to maintain anchor expansion. The invention also includes methods for endovascularly replacing a patient's heart valve.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: August 24, 2010
    Assignee: Sadra Medical, Inc.
    Inventors: Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Amr Salahieh, Dwight P. Morejohn, Kenneth J. Michlitsch
  • Patent number: 7748389
    Abstract: The present invention relates to apparatus for methods for endovascularly replacing a patient's heart valve. The apparatus includes an expandable anchor with leaflet engagement elements on the proximal end of the anchor and a replacement valve. The leaflet engagement elements can be used to prevent distal migration and insure proper positioning of the apparatus.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: July 6, 2010
    Assignee: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Brian D. Brandt, Robert A. Gleshlider, Dwight P. Morejohn, Tom Saul
  • Patent number: 7699774
    Abstract: An access platform having a first and a second blade interconnected to a spreader member that laterally drives the blades apart or together and a sternal pad interconnected to a blade. The superior blade is pivotally coupled to the spreader member such that it naturally rises as the blades are separated. Alternatively, a vertical displacement member is operably interconnected to a blade and the spreader member and is used to vertically displace the interconnected superior blade and, thus, increase a surgeon's working space and visual access for the dissection of an internal mammary artery. A tissue retractor is interconnected to the blades to draw the soft tissue around an incision away from the surgeon's working area.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: April 20, 2010
    Assignee: Maquet Cardiovascular LLC
    Inventors: Charles S. Taylor, William N. Aldrich, Federico J. Benetti, Richard S. Ginn, Dwight P. Morejohn, Brent Regan, Eugene E. Reis, Ivan Sepetka, William F. Witt
  • Publication number: 20090299131
    Abstract: Organ manipulation devices for atraumatically grasping the surface of an organ and repositioning the organ to allow access to a location on the organ that would otherwise be substantially inaccessible. Methods of accessing a beating heart, retracting the heart using an organ manipulation apparatus, and stabilizing a surgical target area with a stabilizer. Both the organ manipulator and stabilizer are fixed to a stationary object which may be a sternal retractor. A system for performing beating heart coronary artery bypass grafting includes a sternal retractor, organ manipulator and stabilizer.
    Type: Application
    Filed: December 18, 2008
    Publication date: December 3, 2009
    Inventors: Harry Leonard Green, II, Jon M. Tanaka, Edward A. Pineda, Dwight P. Morejohn, Liming Lau, John P. Lunsford, Robert Mosley, Joshua Wallin, Iris Leon Corbin
  • Publication number: 20090264997
    Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an expandable anchor configured for endovascular delivery to a vicinity of the patient's heart valve. In some embodiments, the replacement valve is adapted to wrap about the anchor, for example, by everting during endovascular deployment. In some embodiments, the replacement valve is not connected to expandable portions of the anchor. In some embodiments, the anchor is configured for active foreshortening during endovascular deployment. In some embodiments, the anchor includes expandable lip and skirt regions for engaging the patient's heart valve during deployment. In some embodiments, the anchor comprises a braid fabricated from a single strand of wire. In some embodiments, the apparatus includes a lock configured to maintain anchor expansion. The invention also includes methods for endovascularly replacing a patient's heart valve.
    Type: Application
    Filed: June 26, 2009
    Publication date: October 22, 2009
    Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn, Kenneth J. Michlitsch
  • Patent number: 7585277
    Abstract: Methods and devices which a surgeon may use to stabilize the beating heart during a surgical procedure on the heart. A stabilizing device may be introduced through an opening in the chest and brought into contact with the beating heart. By contacting the heart with the device and by exerting a stabilizing force on the device, the motion of the heart caused by the contraction of the heart muscles in a vicinity of a site of surgery to be performed, is effectively eliminated. A surgeon may contact the heart with the stabilizing means, assess the degree of movement of the anastomosis site, and exert a force on the stabilizing means such that the contraction of the beating heart causes only minimal excess motion at the surgery site. The stabilizing means may be attached to a rigid support or may be attached to a semi-rigid support which is rendered motionless mechanically, chemically, or by human intervention.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: September 8, 2009
    Assignee: MAQUET Cardiovascular LLC
    Inventors: Charles S. Taylor, Dwight P. Morejohn, Benjamin Sherman, Gary B. Weller, William F. Witt, Caralin R. Adair
  • Publication number: 20090163768
    Abstract: Systems and methods for placing a treatment device within a patient involve advancing a magnetic first introducer into the patient, advancing a magnetic second introducer into the patient, coupling the first introducer with the second introducer via magnetic force, and using the introducer devices to place a treatment device at a desired location within the patient. Optionally, such techniques involve visualization of the introducers or treatment devices during the procedure.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicant: ESTECH, Inc.
    Inventors: Tamer Ibrahim, Mike J. Banchieri, Dwight P. Morejohn
  • Publication number: 20090076598
    Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an expandable anchor configured for endovascular delivery to a vicinity of the patient's heart valve. In some embodiments, the replacement valve is adapted to wrap about the anchor, for example, by everting during endovascular deployment. In some embodiments, the replacement valve is not connected to expandable portions of the anchor. In some embodiments, the anchor is configured for active foreshortening during endovascular deployment. In some embodiments, the anchor includes expandable lip and skirt regions for engaging the patient's heart valve during deployment. In some embodiments, the anchor comprises a braid fabricated from a single strand of wire. In some embodiments, the apparatus includes a lock configured to maintain anchor expansion. The invention also includes methods for endovascularly replacing a patient's heart valve.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 19, 2009
    Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn, Kenneth J. Michlitsch
  • Publication number: 20090054969
    Abstract: A method for percutaneously replacing a heart valve of a patient. In some embodiments the method includes the steps of percutaneously delivering a replacement valve and an expandable anchor to a vicinity of the heart valve in an unexpanded configuration; expanding the anchor to a deployed configuration in which the anchor contacts tissue at a first anchor site; repositioning the anchor to a second anchor site; and deploying the anchor at the second anchor site.
    Type: Application
    Filed: November 3, 2008
    Publication date: February 26, 2009
    Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider, Jeff Krolik
  • Publication number: 20090048591
    Abstract: Cardiac ablation systems and methods of their use and manufacture involve an ablation mechanism, a stabilizer mechanism, and a cinching mechanism that urges the ablation mechanism toward a patient tissue. Embodiments encompass methods for administering epicardial and endocardial lesions, including box lesions and connecting lesions, to patient tissue.
    Type: Application
    Filed: May 21, 2008
    Publication date: February 19, 2009
    Applicant: ESTECH, Inc.
    Inventors: Tamer Ibrahim, Mike J. Banchieri, Dwight P. Morejohn
  • Publication number: 20080294154
    Abstract: Cardiac ablation systems and methods of their use and manufacture involve an ablation mechanism, a stabilizer mechanism, and a cinching mechanism that urges the ablation mechanism toward a patient tissue. Embodiments encompass methods for administering epicardial and endocardial lesions, including box lesions and connecting lesions, to patient tissue.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Applicant: ESTECH, Inc.
    Inventors: Tamer Ibrahim, Mike J. Banchieri, Dwight P. Morejohn
  • Patent number: 7445631
    Abstract: The present invention relates to an apparatus for replacing a native aortic valve, the apparatus includes an expandable anchor adapted to be endovascularly delivered and secured at a site within the native aortic valve. The expandable anchor has a delivery length in a delivery configuration substantially greater than a deployed length in a deployed configuration. The apparatus may also include and a replacement valve configured to be secured within the anchor.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: November 4, 2008
    Assignee: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn
  • Publication number: 20080234814
    Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a delivery catheter having a diameter of 21 french or less; an expandable anchor disposed within the delivery catheter; and a replacement valve disposed within the delivery catheter. The invention also includes a method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: inserting a catheter having a diameter no more than 21 french into the patient; endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve through the catheter; and deploying the anchor and the replacement valve.
    Type: Application
    Filed: June 3, 2008
    Publication date: September 25, 2008
    Applicant: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider, Jeff Krolik
  • Patent number: 7381219
    Abstract: Apparatus for endovascularly replacing a patient's heart valve, including: a delivery catheter having a diameter of 21 french or less; an expandable anchor disposed within the delivery catheter; and a replacement valve disposed within the delivery catheter. The invention also includes a method for endovascularly replacing a heart valve of a patient. In some embodiments the method includes the steps of: inserting a catheter having a diameter no more than 21 french into the patient; endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve through the catheter; and deploying the anchor and the replacement valve.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 3, 2008
    Assignee: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Brian D. Brandt, Dwight P. Morejohn, Ulrich R. Haug, Jean-Pierre Dueri, Hans F. Valencia, Robert A. Geshlider, Jeff Krolik
  • Publication number: 20080125859
    Abstract: Methods for endovascularly replacing a patient's heart valve. In some embodiments, the method includes the steps of endovascularly delivering a replacement valve and an anchor to a vicinity of the heart valve, the anchor having a braid, and expanding the braid to a deployed configuration against the patient's tissue. The braid may be fabricated from a single strand of wire and/or may comprise at least one turn feature.
    Type: Application
    Filed: February 8, 2008
    Publication date: May 29, 2008
    Applicant: Sadra Medical, Inc.
    Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn
  • Patent number: 7329279
    Abstract: Methods for endovascularly replacing a patient's heart valve. In some embodiments, the method includes the steps of endovascularly delivering a replacement valve and an anchor to a vicinity of the heart valve, the anchor having a braid, and expanding the braid to a deployed configuration against the patient's tissue. The braid may be fabricated from a single strand of wire and/or may comprise at least one the feature.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 12, 2008
    Assignee: Sadra Medical, Inc.
    Inventors: Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Amr Salahieh, Dwight P. Morejohn